IP Library › Granted Patent US 4,841,680
Granted Patent Utility
US 4,841,680 · App. 07/248,335

Inverted cell pad material for grinding, lapping, shaping and polishing

Inventors: Mark F. Hoffstein, Takehisa Shinagawa
Patented Case View Patent ↗
Granted: Jun 27, 1989 Filed: Sep 20, 1988
Inventors
Mark F. Hoffstein
Takehisa Shinagawa
Assignee (at issue)
Rodel Holdings, Inc.

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Quick Facts
Patent No.
US 4,841,680
App. No.
07/248,335
Filed
1988-09-20
Granted
1989-06-27
Kind
A